mm: Make mem_obj_dump() vmalloc() dumps include start and length

This commit adds the starting address and number of pages to the vmalloc()
information dumped by way of vmalloc_dump_obj().

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <linux-mm@kvack.org>
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index c274ea4f14ea326d1279d448a15055df6613168b..e3229ff627ea06523a2771de7308ced4f25ca78c 100644 (file)
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -3456,7 +3456,8 @@ bool vmalloc_dump_obj(void *object)
        vm = find_vm_area(objp);
        if (!vm)
                return false;
-       pr_cont(" vmalloc allocated at %pS\n", vm->caller);
+       pr_cont(" %u-page vmalloc region starting at %#lx allocated at %pS\n",
+               vm->nr_pages, (unsigned long)vm->addr, vm->caller);
        return true;
 }